Poly(ethylene 2,6-naphthalene dicarboxylate)/aromatic ketone compositions having reduced fluorescence
Patent 5310857 Issued on May 10, 1994. Estimated Expiration Date: 
August 9, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 9, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMetal deactivators as adhesion promotors for vulcanizable elastomers to metals Bis-salicyloyl-dicarboxylic acid dihydrazides as stabilizers for polyolefines Patent #: 4012360 InventorsAssigneeApplicationNo. 103645 filed on 08/09/1993US Classes:528/220, FROM KETONE OR KETENE REACTANT252/301.35, Synthetic resin containing528/272, From di- or higher ester of a polycarboxylic acid as sole reactant, or from a polycarboxylic acid or derivative with a compound containing two or more hydroxyl groups or salts thereof528/298, Fused- or bridged-ring-containing reactant other than solely as cyclic acid anhydride group528/302, Two or more carboxylic acid or derivatives or mixtures thereof528/308Aryl-containing carboxylic acid or derivative of an aryl-containing dicarboxylic acidExaminersPrimary: Acquah, Samuel A.Attorney, Agent or FirmInternational ClassC08G 014/00AbstractThis invention relates to a poly(ethylene 2,6-naphthalene dicarboxylate) composition having reduced fluorescence. More specifically, the composition contains poly(ethylene 2,6-naphthalene dicarboxylate) with 0.1 to 5 mole percent of a copolymerizable aromatic ketone. The polyesters are useful for packaging applications where clarity and/or aesthetic appeal are of concern.Other References
Field of SearchFROM KETONE OR KETENE REACTANTFrom di- or higher ester of a polycarboxylic acid as sole reactant, or from a polycarboxylic acid or derivative with a compound containing two or more hydroxyl groups or salts thereof Fused- or bridged-ring-containing reactant other than solely as cyclic acid anhydride group Two or more carboxylic acid or derivatives or mixtures thereof Aryl-containing carboxylic acid or derivative of an aryl-containing dicarboxylic acid Synthetic resin containing | |
